Irritrol's PM-UADAPT Universal Adapter comes from the Pro Max Series. This adapter is designed to be used with the Pro Max Series Controllers and remote radios. Irritrol has made their name as a brand by selling and marketing exclusively to the professional installer, as a result their products are geared to be dependable and durable. Irrirtrol is now making their products available to you through our website. If you are looking for a product line that will last year in and year out, Irritrol is the brand for you.